executing SQL script from Command promt not working

Hello
I am trying to execute SQl script from command prom like this :

C:\Inetput\wwwroot> osql -U sa -P -i MyComics.sql

(uid=sa and pwd=)

and I got the result like this :

[Shared Memory]SQl Server deos not exist or access denied
[Shared Memory]Connection Open (Connect()).

I already check the SQL server , it's running.
what do I do now?

Thanks in advanceAre you certain that the user name and password is correct? Are you certain that this instance of SQL Server is the main instance and not a named instance?|||Hello

thank for the response.

from my understanding sa is the default user name of SQL Server 2000 and password is blank. I did not set any password for my SQL server.

I'm really new to SQL server, if you have any advice I'll appreciate.|||Try osql -E <other parameters, except user and password
-E uses a trusted connection. Unless you set an sa password while installing SQL Server, SQL Server is set to use Windows authentication. You need to specify Mixed Mode authentication. You can change to mixed mode security in Enterprise Manager. Right click database, select properties, set Authentication to SQL Server and Windows. Make sure you set a good sa password. DO NOT leave it as blank!